Web roll support



Filed Dec. 29, 1934 2 Sheets-Sheet l INVENTOR.

April 6, 1937. A. J. HORTON 2,076,405

WEB ROLL SUPPORT Filed Dec. 29, 1934 2 Sheets-Sheet 2 INVE NTO R M .5 Ma ow o m M w fi w lb... ER: L F

Patented Apr. 6, 1937 UNITED sTATEs 2,076,405 wan ROLL SUPPORT Albert J.Horton, White Plains, N. Y., assignor, by mesne assignments, to R. Hoe &00., Inc., New York, N. Y., a corporation of New York ApplicationDecember 29; 1934, Serial No. 759,639

This invention relates to a structure for supporting web rolls and moreparticularly to a support for a rotatable reel for use in supporting aplurality of web rolls from which webs are fed successively to aprinting machine.

The principal object of the invention is to provide an improved meansfor regulating axial or endwise adjustment of the reel as required toobtain the desired marginal alignment as the web passes through theprinting machine.

It is also an object to provide a mechanism for both rotating the rollsupporting reel and adjusting the axial position of same which is ofgenerally improved construction, whereby the device will be simple,durable and inexpensive in construction, as well as convenient,practical, serviceable and eflicient in use.

With the foregoing and other objects in view which will appear as thedescription proceeds,

the invention resides in the combination and arrangement of parts, andin the details of construction hereinafter described.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, where- Figure 1 is an end elevation with partsbroken away, and parts in section, showing a reel support and drivingmechanism for rotating said, reel and also for providing an axialadjustment thereof; and

Figure 2 isa part elevational and part sectional view taken in thedirection of the arrow on line 2 2 of Figure 1.

Two roll supporting spiders Ill-I0, which com- 3 prise the reelstructure, are shown mounted on a horizontally disposed shaft ll, eachspider being provided with a plurality of arms which are adapted tosupport a plurality of web rolls in the manner; shown in Figure 1. Theends of said shaft ll, which extend beyond each end of the reel, aresupported by brackets i 2 and I 3, and

the brackets are preferably mounted on the machine frame II. A bushing15 freely mounted on the driving end of the shaft II, is splined as at20, within a bearing block I6, provided on the bracket I2, and isthereby permitted to be moved axially within the bearing while the shaftII is rotated therein. A gear I! is secured to the driving end of theshaft II, as shownin Figure 2, and abuts one end of the bushing l5. Saidgear is preferably driven through a reduction gear drive, which includesa motor driven worm and worm gear l8 and' I9 respectively, and a pinion2| mounted on a worm gear supporting shaft 22. A bracket 23, secured tothe frame It,

has a bearing portion 24, within which one end of the shaft 22 isrotatably mounted. It is to be noted that the width of the pinion 2| isgreater than the width of the gear H to provide constant mesh of thepinion and gear teeth when the gear position is adjusted, as will behereinafter explained.

The opposite end of the reel supporting shaft H has a sleeve 25 mountedthereon, andsaid sleeve is mounted in a bearing block 26, provided onthe bracket I 3, in a manner which will permit the sleeve to moveaxially but not rotative- 1y while the shaft is permitted to rotatewithin the sleeve. To provide for these conditions, the sleeve 25 ismaintained in a fixed axial relation with the shaft by means of anannular internal flange 28 at the outer end of the sleeve which isconfinedbetweena shoulder 2'! on the shaft and a collar 3| secured tothe end of the shaft. A projection or lug 32 extends radially outwardfrom the sleeve 25 atthe central portion thereof and has a screwthreaded opening 33 therein. A shaft 34 rotatably mounted in bearings 35in the bearing block 26, has a screw 36 thereon which engages the screwthread of the opening 33, and thus provides a means for holding thesleeve against rotation when the reel supporting shaft is rotated.

To move the sleeve .endwise within the bearing block, the screw shaft 34is rotated. This causes the screw 35 to rotate within the threadedopening- 33.of the projection 32 and thus move the sleeve forward orbackward. The said screw shaft may be rotated in any desired manner butis preferably power driven through a reduction drive including a wormand worm gear shown at 31 and 38 respectively. The worm gear 38 issecured to the screw shaft 34, while the worm 31 has shaft extensions3939 rotatably mounted in bearings lI-Al, the latter being mounted in ahousing 42 secured to the bracket I3. A

motor 43, supported on the frame I4, is connected in a driving relationwith the shaft 39.

The driving mechanism, which is provided to rotate the roll supportingreel, is arranged in a simple and effective manner at one end of thereel supporting shaft ll, whereas the mechanism provided to adjust thereel in an endwise or axial direction for obtaining marginal align- 'ofthe shaft H, and the arrangement of the gear I! to slide along the teethof the pinion 2|,

while remaining in full contact therewith due to the greater length ofsaid pinion teeth, thus provides simple and effective rotationalmovement.

Means is also provided to limit the endwise movement of the shaft II,which includes two limit switches 46, 41, each having an operating arm44 and 45 connected therewith and -posi-. tioned at either side of afinger 46 secured to the bushing [5, said finger being adapted to engageand rock either of the arms 44 or 45 to open a switch 46 or 41 andthereby break'a circuit to the motor 43 when a predetermined limit ofmovement of said shaft II has been reached.

It will be understood that the invention may be embodied in otherspecific forms without de- 20 parting from the spirit or essentialattributes thereof, and it is therefore desired that the presentembodiment be considered in all respects as illustrative and notrestrictive, reference being had to the claims rather than to theforegoing description to indicate the scope of the invention.

What I claim is: V

1. In a web roll support, the combination of a roll supporting reelhaving a shaft, means to support said shaft at each end thereof andmeans to rotate, same, means to adjust said shaft including a sleeveconfined to one end of the shaft and axially movable within the support,a screw in operative engagement with said sleeve to move same coaxiallywith the shaft and thereby adjust the axial position of the reel, andmeans to rotate said screw.

2. In a web roll support, the combination of a roll supporting reel, areel supporting shaft, a sleeve at one end of the shaft and held againstaxial movement thereon, a bearing block arranged to support the sleevewhile permitting axial but not rotary movement thereof, a projection onsaid sleeve and having a screw thread formed therein, a screw rotatablysupported in t the bearing block and engaging said screw thread, and apower drive for rotating the screw to thereby adjust the axial positionof the reel.

3. In a web roll support, the combination of a roll supporting reel, areel supporting shaft,-a sleeve at one end of the shaft and held againstaxial movement thereon, a bearing block arranged to support the sleevewhile permitting axial but not rotary movement thereof, a projection onsaid sleeve and having a screw thread formed therein, a screwrotatablysupported in the bearing block and engaging said screw thread, and apower drive for rotating the screw to thereby adjust the axial positionof the reel, a finger extending from said reel supporting shaft andlimit switches electrically connected with the power drive, each havingan actuating arm extending in the path of said finger, whereby thepower,

drive circuit may be broken after a predetermined distance of movementof the shaft in either axial direction.

4. In a web roll support, the combination of a roll supporting reel, 2.reel supporting shaft, a sleeve at one end of the shaft and held againstgaxial movement thereon, a bearing block arranged to support the sleevewhile permitting axial but not rotary movement thereof, a screwassociated with said sleeve and adapted to adjust the axial position ofthe sleeve, and means-to rotate said screw to thereby adjust the axialposition of the reel, a gear on the opposite end of the reel supportingshaft and axially movable therewith, a pinion having teeth along whichthe teeth of the gear are arranged to move and maintain full runningcontact while permitting extreme shaft adjustments to be made, and meansto drive said pinion.

5. In a rollsupporting reel having a shaft, sleeve members in which saidshaft is rotatably supported adjacent each end, means to confine, oneend of the shaft to one sleeve, supports in which said sleeves areaxially movable, means for moving the confined sleeve axially to therebymove the shaft, and means for rotating the shaft.

6. In a web roll supporting reel having a shaft, a bearing member ateach end of said shaft, said shaft being rotatable and confined againstaxial movement in both of said members, a support for each member and inwhich they are axially slidable, and meansengaging one of said membersto axially move both of said members whereby said shaft and reel areaxially moved.

'7. In a web roll supporting reel having a shaft, 9. bearing member ateach end 'of said shaft, said shaft being rotatable and confined againstaxial movement in both of said members, a support for each member and inwhich they are axially slidable, means engaging one of said members toaxially move said shaft and reel, and means associated with one of saidmembers to control said moving means to limit the extent of theaforesaid axial movement.

8. In a web roll supporting reel having a. shaft,

a bearing member at each end of said shaft, said shaft beingrotatable insaid members and confined against axial movement in one, a support foreach member and in which said members are axially slidable, means toaxially move the mem-'' her in which said shaftis confined whereby saidshaft and reel-are axially moved, and means to rotate said shaftincluding a gear secured thereto and axially movable therewith, andanother gear in mesh with the first mentioned gear, one of said gearsbeing wider than the other whereby full running contact is assured inall adjusted vpositions of said reel.

9. In a web roll supporting reel having a shaft, a bearing member ateach end of said shaft, said shaft being rotatable and confined againstaxial' -movement in both of said members, a support shaft, said shaftbeing rotatable and confined against axial movement in both of saidmembers, a support for each member and in which they are axiallyslidable, means engaging oneof said members to axially move said shaftand reel,

and means movable with said shaft to control said member moving-means tolimit the extent of the movement of said shaft in both directions.

11. In a web roll supporting reel, a shaft upon which the reel issupported, a bearing block at each end of the shaft and concentrictherewith relatively to which the shaft is axially slidable,

the bearing block at one end of the shaft supporting a sleeve in whichthe shaft is rotatable, the sleeve being connected to the shaft foraxial movement therewith, means to rotate said shaft, means actingthrough said sleeve to axially move said shaft, and, means movableaxially with the shaft and controlling the means to axially move theshaft, to limit the extent of such movement.

12'. In a web roll supporting reel, a. shaft upon which the reel issupported, a bearing block at each end of the shaft and concentrictherewith relatively to which the shaft is axially slidable, the bearingblock at one end of the shaft supporting a sleeve in which the shaft isrotatable,

means to connect the sleeve to the shaft to prevent relative axialmovement therebetween, a. lateral extension on the sleeve, means toengage said extension to move said sleeve and with it said shaft axiallyin said bearings, an electric motor to actuate said sleeve moving means,a control for said motor, and means movable axially with said shaft toactuate said control and limit the extent of the axial movement of saidshaft.

ALBERT J HORTON.

